Pencil



L.. T. MCNARY Feb, 19, 1924.

PENCIL Filed Oct. lln 1921 ylNVENTOR.

ATTORNEY.

i Patented Feb. 19, 1924.

UNITED STATES 1,484,180 PATENT oFFlcs. I

LAWRENCE 'I'. IICNARY, or CRANs'roN, RHODE. ISLAND, AssIGNon 'ro' REX MANU- FACTURING COMPANY, or PROVIDENCE, RHODE ISLAND.

PENCIL.

Application led October 11, 1921. Serial No. 507,050.

To all whom t may concern: j

Be it known that I, LAWRENCE T. MCNARY, a citizen of the United States, residing at Cranston, in the county of Providence and State of Rhode Island, have invented new and useful Improvements in Pencils, of which the following is a specification.

This invention relates to certain new and useful improvements in pencils, and the primary object of the invention ls to provide improved means for holding the operative parts assembled within the casing.

The invention further aims to provide means to hold the parts assembled by frictional engagement with the casing interior, and more particularly at a multiplicity of spaced points throughout the inner circumference of the casing interior and further aims to provide means for economically and expeditiously securing the lead carrier and associated parts within the spiral guide or lead feeding member. Y

The invention has further and other objects which will be later set forth and manifested in the course of the following description.

In the drawings:

Figure 1, is a side elevation partly in section;

Figure 2, is a section on line 2--2 of Figure 1;

Figure 3, is an enlarged section on line 3-3 of Figure 2; and

Figure 4, is a similar view on line 4:-4 of Figure 2.

In proceeding in accordance with the present invention the sleeve 1 which forms the lead protecting end is first formed with a flange 2 that extends upwardly therefrom. This flange is then rolled inwardly as shown in Figure 2, for the purpose of supporting the elongated or straight grooved guide 3 which latter receives the lead carrier 15. The. guide 3 is secured by means of solder 5 to the sleeve 1, the sleeve having a concavo-convex bead 6, so that the solder will engage in the bead and with the guide 3 and against the inturned extremity of the flange 2 thereby providing a solder-receiving pocket which effectively holds the latter against theguide 3 and the guide against and anchored to the flange 2. The lead carrier 15 is next inserted in place, and the spiral member 7, then placed about the aforementioned parts as depicted in Fig.

2, of the drawings and with its inner end engagedwith the inturned end of sleeve 1. A. ring 8, is now applied to the outer end of the guide member 3 and in engagement with the' outer end of spiral member 7, and said end of the member 3, is then pinched or bent into the form illustrated` at 9, so as to spread or flatten the same diametrically of member 3 for the purpose of holding the #ring in place and tne parts in their assembled relation, as illustrated.

The spiral member 7, is formed with a staggered or offset series of bosses or knobs 10, which are formed by punching the metal outwardly, thereby providing concavo-convex bosses which latter on their convex rounded sides, frictionally engage against the inner circumference of the casing 11, thereby holding all of the parts assembled and in' operative position. A finishing cap 12, is next applied to the tubular casing 11, or may be applied prior to the casing being forced over and in frictional engagement with the bosses 10, of the spiral member 7. The bead 6, acts to limit movement of the casing with respect to the sleeve 1, so .that the bead thus functions in a dual manner.

From the foregoing it will be noted that the assembling operation can be quickly, and economically practiced, since but a single soldering operation is involved, thus more effectively holding the parts assembled, since rictional Contact or engagement is relied anl upon in themain for the purpose of con- .ment with the member 13. In operation,

sleeve 1 is held in one hand and the casing 11 rotated with the other about sleeve 1, thereby effecting, rotation of the spiral member 7 and movement of the lead carrier 15 to feed the lead.

Havin thusdescribed my invention, what I c aim as new and desire to secure by Letters Pat-ent is 1. In a pencil, a sleeve having an inturned end and having a concavo-convex bead belove1 said end, a guide member engaged with the flange, solder engaged with the guide member, with the extremity of the inturned end, and in concave part of the bead, a lead carrier in the lguide member, a spiral for the lead carrier engaged with the inturned lend of the sleeve ,at one end, a ring engaged with the other end of the spiral and about the guide member, said guide member having its outer .end flattened to provide abutments for engaging the ring, to hold the latter and the spiral onto the guide member, said spiral having a staggered series of punched out bosses, and a casing frictionally engaged with the bosses on its inner circumference and having its inner end engaged with the bead. A

2. In a pencil, a sleeve having an inturned end 'and having a concavo-convex bead below said end, a guidemember engaged with the inturned end, solder engaged with the guide member, the extremity of the int-urned end, and in the concave part of the bead, a lead carrier in the guide member, a spiral for the lead carrier engaged with the inturned end of the sleeve at one end, and a 4casing frictionally engaged 'with `the spiral .same against the sleeve, said end of the guide member beyond the ring being diametrically flattened to form abutments engaging the ring to hold the latter against outward movement, and a casing engaged with the spiral.

4. In a pencil, a lead engaging sleeve, a guide connected to the sleeve, a lead carrier in the guide, a spiral for the lead carrier engaged at one end with the sleeve, means to hold the opposite end of the spiral against outward `movement with respect to the guide, said Spiral having a series of struckout concavo-conveX bosses formed in staggered relation thereabout, and a casing frictionally engaged with the convex portions of the bosses.

5. n a pencil, a lead engaging sleeve, fa

guide connected to the sleeve, a lead carrier in the guide, a spiral for the lead carrier engaged at one end with the sleeve, means to hold the opposite end of the spiral against outward movement with' respect to the guide, said spiral having a series of bossesl arranged about its circumference, and a casing frictionally engaged over the spiral and with the bosses.

6. In a pencil, a lead protecting sleeve, a guide securedat one end to the sleeve, a lead carrier in the guide, a spiral for the lead carrier engaged about the guide, the spiral engaging the sleeve at one end, and the opposite end of the guide being dia-v metrically flattened to hold the spiral against outward movement relative to the guide, and a casing secured about the spiral.

7. In a pencil, a lead protecting Sleeve, a guide secured at one endto the sleeve, a lead carrier in the guide, a spiral onthe lead carrier engaged about the guide, the spiral engaging the sleeve at one end, and the opposite end of the guide being lattened to hold the spiral against outward movement relative to -the guide, said spiral having a series'of bosses about its circumference, and

a casing engaged yabout the spiral and rictionally with the bosses. f 8. lin a pencil, a lead protecting sleeve, a guide secured at one end to the sleeve, a lead carrier in the guide, a spiral for the lead carrier engaged about the guide, means frictionally holding the spiral engaged with v thesleeve and forv preventing longitudinal movement of the spiral relative to the guide, and a casing frictionally engaged with the spiral and at a multiplicity of spaced points substantially throughout the length andcircumference of the spiral.

In testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses.

LAENCE T. MCNY.

Witnesses:

HENRY M. BURT, RAPHAEL VICARIo. 

